A terminal side load electrical connector positions a series of terminals of a flex circuit into a core in unison. The core has a peripheral surface extending between a contact surface and a conductor surface. The terminals are assembled to the core through the peripheral surface. A housing has a conductor opening opposite to a contact opening. The core with the pre-assembled terminals insert into the housing through the conductor opening. The contact surface of the core is exposed through the contact opening of the core. The housing engages the peripheral surface of the core thereby preventing the disengagement of the terminals from the core.
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1. An electrical connector comprising:
a core having a peripheral surface, a contact surface, a conductor surface, and at least one cell, the peripheral surface extended between the conductor surface and the contact surface, the at least one cell extended from the contact surface. through the conductor surface, the cell having a groove and a recess, the groove exposed through the contact and conductor surfaces, and exposed longitudinally through the peripheral surface of the core, the recess communicating transversely with the groove; a terminal disposed longitudinally in the groove of the cell and exposed through the contact surface of the core, the terminal being inserted laterally into the groove past the peripheral surface, the terminal having a tab projecting perpendicularly from the terminal, the tab disposed within the recess of each one of the plurality of cells; and a housing having a peripheral conductor edge, a peripheral contact edge and an inner surface, the inner surface extended between the conductor and contact edges, the peripheral surface of the core engaged by the inner surface of the housing to retain the terminal in the at least one cell laterally, the contact surface of the core exposed through the housing inward of the contact edge of the housing.
3. An electrical connector comprising:
a core having a peripheral surface, a contact surface, a conductor surface, and a plurality of cells, the peripheral surface extended between the conductor surface and the contact surface, the plurality of cells extended from the contact surface through the conductor surface, the plurality of cells each having a groove exposed through the contact and conductor surfaces, the groove exposed longitudinally through the peripheral surface of the core; a conductor cable selected from the group consisting of a flex circuit and a ribbon cable, the conductor cable having a plurality of conductors each one engaged electrically to a terminal disposed longitudinally in the groove of the respective plurality of cells and exposed through the contact surface of the core, the terminal being inserted laterally into the respective groove past the peripheral surface; and a housing having a peripheral conductor edge, a peripheral contact edge and an inner surface, the inner surface extended between the conductor and contact edges, the peripheral surface of the core engaged by the inner surface of the housing to retain laterally the terminal in each one of the plurality of cells, the contact surface of the core exposed through the housing inward of the contact edge of the housing.
5. An electrical connector comprising:
a core having an elongated front face, an elongated rear face, a contact surface, a conductor surface, and a plurality of cells, the front face parallel to the rear face, the front and rear faces each extended laterally between the conductor surface and the contact surface, the plurality of cells divided between the front and rear faces, the plurality of cells disposed tranversely and spaced evenly along the front and rear faces and each extended from the contact surface through the conductor surface, the plurality of cells each having a groove exposed through the contact and conductor surfaces, the groove exposed longitudinally through the peripheral surface of the core; a flex circuit having a plurality of conductors and a mid portion, the plurality of conductors having a first end and a second end, the first and second ends each engaged to a terminal disposed longitudinally in the groove of the respective plurality of cells and exposed through the contact surface of the core, the terminals engaged to the first ends of the plurality of conductors being inserted laterally into the respective groove past the front face of the core, the terminals engaged to the second ends of the plurality of conductors being inserted laterally into the respective groove past the rear face of the core; and a housing having a peripheral conductor edge, a peripheral contact edge and an inner surface, the inner surface extended between the conductor and contact edges, the front and rear faces of the core engaged by the inner surface of the housing to retain laterally the plurality of terminals in the plurality of cells, the contact surface of the core exposed through the housing inward of the contact edge of the housing.
2. The electrical connector as set forth in
4. The electrical connector as set forth in
6. The electrical connector as set forth in
7. The electrical connector as set forth in
a wall extended outwardly from the conductor surface of the core, the wall having a front side and a back side; a plurality of ribs extended laterally outward from the front and back sides of the wall, the plurality of ribs extended longitudinally outward from the conductor surface between each groove; and a plurality of channels defined by the plurality of ribs and the respective front and back sides of the wall, the terminal disposed within each one of the plurality of channels.
8. The electrical connector as set forth in
a wall extended outwardly from the conductor surface of the core, the wall having a front side and a back side; a plurality of ribs extended laterally outward from the front and back sides of the wall, the plurality of ribs extended longitudinally outward from the conductor surface between each groove; and a plurality of channels defined by the plurality of ribs and the respective front and back sides of the wall, the terminal disposed within each one of the plurality of channels.
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This invention relates to an electrical connector and more particularly to an electrical connector for flex circuits.
Electrical connectors commonly provide convenient plugging type terminations for electrical cables including flex circuits. An electrical connector for a flex circuit is elongated and houses a multitude of parallel and evenly spaced terminals pre-crimped to the conductors of the flex circuit. The terminals project longitudinally from and planar to the flex circuit. Because the terminals are actually crimped about the conductors to the substrate material of the flex circuit itself, movement of the terminals relative to each other is very limited and lengthwise movement is restricted altogether. For this reason, and unlike separately insulated wires of a cable, all of the flex circuit terminals must be inserted into a core or female portion of an electrical connector in unison. This means the leading or free end of each terminal is first inserted into individual cavities within the core from a lengthwise direction of the cavity. The cavity is generally perpendicular to the longitude of the connector. Once the leading end of the terminal group is inserted, the remaining portion of every terminal is pushed into the cavity in unison. Unfortunately, aligning the terminal ends to the cavities in unison is difficult and time consuming. Furthermore, pushing all of the terminals into the cavities in unison is prone to damage the flex circuit.
Accordingly, the present invention is an electrical connector having a core shrouded by a housing when assembled. The core has a peripheral surface extending between a contact surface and a conductor surface. A plurality of cells are spaced along the peripheral surface and extend between the contact surface and the conductor surface. Each cell has an elongated groove exposed longitudinally through the peripheral surface. The ends of the groove are exposed through the contact surface and the conductor surface. The terminals are inserted laterally into the elongated grooves, preferably with a slight press fit.
The housing has a peripheral wall extending between a conductor edge and a contact edge. The conductor edge defines a conductor opening and the contact edge defines a contact opening. After all of the terminals are press fitted into the elongated grooves of the core, the core is inserted through the conductor opening of the housing. When assembled, the contact surface is exposed through the contact opening of the housing. An inner surface of the housing engages the peripheral surface of the core thereby assuring the terminals are held within the elongated grooves.
Preferably each cell of the core has a recess communicating with the groove. Mating with the recess is a tab projecting perpendicularly from the terminal. The tab prevents lengthwise movement of the terminal with respect to the groove of the core. Also preventing lengthwise movement of the terminal with respect to the core are conductor and contact shoulders of the cell. An enlarged contact end of the terminal is disposed between the shoulders within the groove. The shoulders thereby provide lengthwise placement of the terminal with respect to the core.
A feature of the invention is the ability to side load a plurality of terminals crimped to a flex circuit into a core of an electrical connector thereby reducing the amount of time necessary to assemble the electrical connector and limiting the amount of stress placed on the flex circuit during assembly.
These and other objects features and advantages of the invention will become more apparent from the following description of a preferred embodiment taken in conjunction with the accompanying drawings.
The presently preferred embodiment of the invention is disclosed in the following description and in the accompanying drawings wherein:
Referring now to the drawings and in particular to
The core 12 has a peripheral surface 22 extending between a contact surface 24 and a conductor surface 26. Each crimped terminal 20 press fits into a groove 40 of a cell 28 past the peripheral surface 22. The cells 28 and grooves 40 are substantially perpendicular to the longitude of the core 12 and parallel to one-another. The housing 14 extends between a contact edge 32 and a conductor edge 34. The contact edge 32 defines a contact opening 36 and the conductor edge 34 defines a generally parallel conductor opening 38. The core 12, along with the pre-press fitted terminals 20, insert within the housing 14 through the conductor opening 38. When assembled, the contact surface 24 of the core 12 is exposed through the contact opening 36 of the housing 14. The contact surface 24 is substantially planar to the contact edge 32 of the housing 14. The housing 14 encompasses and engages the peripheral surface 22 of the core 12 and thereby prevents the terminals 20 from moving in an outward direction from the peripheral surface 22.
Referring to
Referring to
Referring to
Formed into the groove 40 is a recess 62 which mates with a protruding tab 64 of the terminal contact end 52 when the electrical connector 10 is assembled. Recess 62 can be formed into the left or right surfaces 44, 46, and recess 62 then communicates with the groove 40 and exposes through the peripheral surface 22. However, because of preferred wall thickness geometry of the core 12, the recess 62 forms into the back surface 42 of the cell 20. Therefore, the recess 62 is disposed axially between the conductor shoulder 48 and the contact shoulder 50, communicating with the groove 40. The tab 64 of the enlarged contact end 52 substantially protrudes perpendicularly from the longitude of the terminal 20. When assembled the tab 64 is disposed within the recess 62. To simplify manufacturing of the terminal 20, the tab 64 is generally planar and adjoins unitarily to a side wall of the terminal 20 and perpendicular to a back wall of the terminal 20. Consequently, either the left or the right side of the recess 62 is planar or flush with the respective left or right surface 44, 46 of the cell 28. As illustrated, the recess 62 is generally planar to the left surface 44. Guiding the tab 64 into the recess 62 is a chamfered surface 66 disposed outward from the recess 62. Chamfered surface 66 congruently forms to the peripheral surface 22 of the core 12 and the left surface 44 of the cell 28. Chamfered surface 66 functions to guide the tab 64 when the terminal 20 is press fitted into the groove 40 of the cell 28 from a side or lateral direction to the core 12.
The cells 28 are preferably disposed on both an elongated front face 68 and an elongated rear face 70 of the peripheral surface 22. The cells 28 on the front face 68 are disposed back-to-back to the cells 28 on the rear face 70. This symmetry prevents communication between recesses 62 and therefore prevents contact between terminal tabs 64 which must be electrically insulated from one-another. Also providing electrical insulation between terminals 20 is an insulating wall 72 generally protruding laterally outward from the longitudinal center of the conductor surface 26. The wall 72 also provides lateral support for the conductor cable or flex circuit 16. The insulating wall 72 has a front side 74 and a back side 76 both having a plurality of ribs 78 defining a plurality of channels 80 extending substantially perpendicular to the longitude of the insulating wall 72. Each channel 80 is substantially co-linear to each respective groove 40 of the cell 28. Situated within each channel 80 and electrically insulated from each other by the insulating wall 72 is a gripping end 82 of the terminal 20. Each gripping end 82 electrically engages a conductor 18 preferably by crimping the conductor 18 through the substrate of the flex circuit.
Referring to
The inner surface 84 of housing 14 has a longitudinal first side 96 and an opposing longitudinal second side 98. Spanning between the first and second sides 96, 98 of the housing 14 near the contact edge 32 of the housing 14 is at least one bridge 100. Bridge 100 provides rigidity between the first and second sides 96, 98 and provides an indexing placement for the core 12 relative to the housing 14. The bridge 100 mates with a slot 102 disposed between the cells 28 and communicating longitudinally through the contact surface 24 of the core 12. The contact surface 24 of the core 12 is thereby substantially flush with the contact edge 32 of the housing 14 when assembled.
To assure that core 12 and housing 14 are properly assembled, it is necessary that the front side 74 of insulating wall 72 opposes the first side 96 of the inner surface 84 of the housing 14, and at least one elongated protrusion 104 extends from either the first side 96 or the second side 98 of the housing inner surface 84. Mating with the protrusion 90 is a slit 106 disposed longitudinally through the peripheral surface 22 of the core 12. The slits 106 are generally parallel to and extend the length of the cells 28.
To snap lock the core 12 to the housing 14, a plurality of burs protrude from the inner surface 84 of the housing 14. The burs 108 are beveled at the upward or trailing side toward the conductor edge 34 so that voids 110 disposed between selected cells 28 receive the burs 108 in a snap fitted arrangement. The burs 108 have an engagement end 112 which is substantially perpendicular to the inner surface 84. The engagement end 112 engages the conductor surface 26 when the core 12 is locked within the housing 14 thereby preventing the core 12 from lifting away from the bridge 100 and out of the housing 14.
Molded substantially flush to the contact edge 32 of the housing 14 and projecting inward from the inner surface 84 are a series of beveled tangs 114. Each tang 114 is aligned to a cell 28 of a core 12. The tang 114 extends between the left and right members 54, 56 of the contact shoulder 50. The contact surface 24 has a plurality of beveled surfaces 116. Each beveled surface 116 is congruent to and spans the width of the back surface 42 of each cell 28. The beveled tang 114, the beveled left and right members 54, 56, and the beveled surface 116 form a four-sided beveled edge aperture 118 for easy receipt of a contact pin into the enlarged female contact end 52 of the terminal 20 through the contact surface 24 of the core 12.
Referring to
While the forms of the invention herein disclose constitute presently preferred embodiments many others are possible it is not intended herein to mention all of the possible equivalent forms or ramifications of the invention; it is understood that the terms used here are merely descriptive rather than limiting and at various changes may be made without departing from the spirit or scope of the invention.
Heffner, David C., Politsky, Peter M, Lesigonich, Robert S., Cunningham, Thomas F.
Patent | Priority | Assignee | Title |
6547605, | Jul 20 2001 | Delphi Technologies, Inc. | Flex circuit electrical connector |
6674355, | May 19 2000 | M-FLEX MULTI-FINELINE ELECTRONIX, INC ; MULTI-FINELINE ELECTRONIX, INC | Slot core transformers |
6732715, | Feb 20 2002 | DELPHI TECHNOLOGIES IP LIMITED | Control method |
6749459, | Jul 10 2001 | Delphi Technologies, Inc.; Delphi Technologies, Inc | Electrical connection system |
6796017, | May 19 2000 | M-Flex Multi-Fineline Electronix, Inc. | Slot core transformers |
6837751, | Jul 25 2002 | Aptiv Technologies Limited | Electrical connector incorporating terminals having ultrasonically welded wires |
6864015, | Jul 17 2001 | Aptiv Technologies Limited | Anti-rotation terminal connection assembly |
6926547, | Jul 06 2001 | Delphi Technologies, Inc. | Electrical connector |
6926552, | Oct 03 2002 | Delphi Technologies, Inc. | Electrical cable connector |
6939164, | May 14 2003 | Sumitomo Wiring Systems, Ltd | Connector and connector assembly |
7048546, | Aug 12 2003 | Shimano Inc | Bicycle hub dynamo assembly |
7056161, | Feb 20 2001 | Newfrey LLC | Grounding stud |
7075794, | Sep 11 2003 | TEMIC AUTOMOTIVE OF NORTH AMERICA, INC | Electronic control unit |
7135952, | Sep 16 2002 | M-FLEX MULTI-FINELINE ELECTRONIX, INC ; MULTI-FINELINE ELECTRONIX, INC | Electronic transformer/inductor devices and methods for making same |
7178220, | May 19 2000 | Multi-Fineline Electronix, Inc. | Method of making slotted core inductors and transformers |
7271697, | Dec 07 2004 | MULTI-FINELINE ELECTRONIX, INC ; M-FLEX MULTI-FINELINE ELECTRONIX, INC | Miniature circuitry and inductive components and methods for manufacturing same |
7277002, | Sep 15 2003 | M-FLEX MULTI-FINELINE ELECTRONIX, INC | Electronic transformer/inductor devices and methods for making same |
7436282, | Dec 07 2004 | MULTI-FINELINE ELECTRONIX, INC | Miniature circuitry and inductive components and methods for manufacturing same |
7477124, | May 19 2000 | Multi-Fineline Electronix, Inc. | Method of making slotted core inductors and transformers |
7602272, | Dec 07 2004 | Multi-Fineline Electronix, Inc. | Miniature circuitry and inductive components and methods for manufacturing same |
7645941, | May 02 2006 | MULTI-FINELINE ELECTRONIX, INC | Shielded flexible circuits and methods for manufacturing same |
7656263, | Dec 07 2004 | Multi-Fineline Electronix, Inc. | Miniature circuitry and inductive components and methods for manufacturing same |
7690110, | Dec 07 2004 | Multi-Fineline Electronix, Inc. | Methods for manufacturing miniature circuitry and inductive components |
7696852, | Sep 16 2002 | Multi-Fineline Electronix, Inc. | Electronic transformer/inductor devices and methods for making same |
Patent | Priority | Assignee | Title |
4382652, | Jan 19 1981 | Aries Electronics, Inc. | Stackable flat conductor cable connector assembly |
4605276, | Mar 30 1983 | Berg Technology, Inc | Two row coaxial cable connector |
4909753, | Nov 05 1987 | SIEMON COMPANY, THE | Patch connector |
5888096, | Jan 25 1994 | The Whitaker Corporation | Electrical connector, housing and contact |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Nov 06 2000 | CUNNINGHAM, THOMAS F | Delphi Technologies, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 011404 | /0235 | |
Nov 08 2000 | POLITSKY, PETER M | Delphi Technologies, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 011404 | /0235 | |
Nov 08 2000 | LESIGONICH, ROBERT S | Delphi Technologies, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 011404 | /0235 | |
Nov 13 2000 | HEFFNER, DAVID C | Delphi Technologies, Inc | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 011404 | /0235 | |
Dec 07 2000 | Delphi Technologies, Inc. | (assignment on the face of the patent) | / | |||
Apr 21 2001 | MAIYURAN, SUBRAMANIAM | Intel Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 011772 | /0697 | |
May 01 2001 | PALANCA, SALVADOR | Intel Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 011772 | /0697 |
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